[12:54] <immaozhou> Can build be deleted?
[12:58] <cjwatson> You might need to be slightly more specific
[13:01] <immaozhou> How to delete the build of a source package?
[13:02] <cjwatson> In general you can't.  Why?
[13:07] <immaozhou> I want to delete the build of the mips64el architecture in the distribution in order to copy the mips64el binary package from ppa to this distribution
[13:10] <immaozhou> There is a problem with the chroot of mips64el architecture, but some source packages of mips64el have been compiled
[13:16] <cjwatson> The simplest way by far is to just bump the version a bit.
[13:17] <cjwatson> Oh, but you mean for all packages?
[13:17] <cjwatson> It'll need fairly complex DB surgery.
[13:18] <cjwatson> You can probably start by trying to DELETE the relevant BinaryPackageBuild rows in a transaction and seeing what constraints fail, but this isn't something we ever do on production so I don't have a script for you